I haven't found a really good video of "Rhapsody in Blue" at the 1984 Olympics in Los Angeles, but here's one:

https://www.youtube.com/watch?v=34FzFRlicog

And another:

https://www.youtube.com/watch?v=ylUF32pwvtI

And here's Leonard Bernstein performing "Rhapsody in Blue":

https://www.youtube.com/watch?v=cH2PH0auTUU